<?php

class ItemController extends Controller {

    /**
     * @return array action filters
     */
    public function filters() {
        return array(
            'accessControl', // perform access control for CRUD operations
        );
    }

    /**
     * Specifies the access control rules.
      /**
     * Specifies the access control rules.
     * This method is used by the 'accessControl' filter.
     * This method is used by the 'accessControl' filter.
     * @return array access control rules
     */
    public function accessRules() {
        return array(
            array('allow', // allow all users to perform 'index' and 'view' actions
                'actions' => array('index', 'view'),
                'users' => array('*'),
            ),
            array('allow', // allow authenticated user to perform 'create' and 'update' actions
                'actions' => array('create', 'update', 'delete', 'buy', 'search', 'buyall'),
                'users' => array('@'),
            ),
            array('allow', // allow admin user to perform 'admin' and 'delete' actions
                'actions' => array('admin'),
                'users' => array('admin'),
            ),
            array('deny', // deny all users
                'users' => array('*'),
            ),
        );
    }

    /**
     * Displays a particular model.
     * @param integer $id the ID of the model to be displayed
     */
    public function actionView($id) {
        $this->render('view', array(
            'model' => $this->loadModel($id),
        ));
    }

    /**
     * Creates a new model.
     * If creation is successful, the browser will be redirected to the 'view' page.
     */
    public function actionCreate() {
        $model = new Item;

        if (isset($_POST['Item'])) {
            $model->attributes = $_POST['Item'];
            $model->user_id = Yii::app()->user->id;
            $model->image = CUploadedFile::getInstance($model, 'image');
            if ($model->save())
                $this->redirect(array('view', 'id' => $model->id));
        }

        $this->render('create', array(
            'model' => $model,
        ));
    }

    /**
     * Updates a particular model.
     * If update is successful, the browser will be redirected to the 'view' page.
     * @param integer $id the ID of the model to be updated
     */
    public function actionUpdate($id) {
        $model = $this->loadModel($id);

        if (isset($_POST['Item'])) {
            $model->attributes = $_POST['Item'];
            $model->image = CUploadedFile::getInstance($model, 'image');
            if ($model->save())
                $this->redirect(array('view', 'id' => $model->id));
        }

        $this->render('update', array(
            'model' => $model,
        ));
    }

    /**
     * Deletes a particular model.
     * If deletion is successful, the browser will be redirected to the 'admin' page.
     * @param integer $id the ID of the model to be deleted
     */
    public function actionDelete($id) {
        if (isset($_REQUEST['quantity'])) {
            $quantity = $_REQUEST['quantity'];
            $model = $this->loadModel($id);
            echo $quantity;
            if ($quantity >= $model->quantity) {
                $model->delete();
            } else {
                $model->quantity -= $quantity;
                $model->saveAttributes(array('quantity'));
                $this->redirect(array('view', 'id' => $id));
            }
        } else {
            $this->loadModel($id)->delete();
        }

        // if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
        if (!isset($_GET['ajax'])) {
            $this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : Yii::app()->baseUrl);
        }
    }

    /**
     * Lists all models.
     */
    public function actionIndex() {
        //facebook registration
        if (isset($_POST['signed_request'])) {
            $this->forward('user/register');
        }

        $dataProvider = new CActiveDataProvider('Item', array(
                    'criteria' => array(
                        'condition' => 'quantity != 0'
                    ),
                    'pagination' => array(
                        'pageSize' => 12
                    )
                ));
        $this->render('index', array(
            'dataProvider' => $dataProvider,
        ));
    }

    public function actionBuy($id, $quantity) {
        $model = $this->loadModel($id);
        $model->quantity -= $quantity;
        if ($model->quantity < 0) {
            $model->quantity = 0;
        }
        $model->save(false);
//		if ($model->quantity > 1) {
//			$model->quantity -= $quantity;
//			$model->save();
//		} else {
//			$model->delete();
//		}

        $spent = Yii::app()->user->getState('spent');
        $spent += $model->price * $quantity;
        Yii::app()->user->setState('spent', $spent);

        $this->render('buy');
    }

    public function actionBuyAll() {
        $this->render('buyall');
    }

    public function actionSearch($searchBox) {
        $model = new Item();
        $model->name = $searchBox;
        $user = new User();
        $user->name = $searchBox;
        $this->render('_search', array(
            'dataProviderItem' => $model->search(),
            'dataProviderUser' => $user->search()
        ));
    }

    /**
     * Manages all models.
     */
    public function actionAdmin() {
        $model = new Item('search');
        $model->unsetAttributes();  // clear any default values
        if (isset($_GET['Item']))
            $model->attributes = $_GET['Item'];

        $this->render('admin', array(
            'model' => $model,
        ));
    }

    /**
     * Returns the data model based on the primary key given in the GET variable.
     * If the data model is not found, an HTTP exception will be raised.
     * @param integer the ID of the model to be loaded
     */
    public function loadModel($id) {
        $model = Item::model()->findByPk($id);
        if ($model === null)
            throw new CHttpException(404, 'The requested page does not exist.');
        return $model;
    }

    /**
     * Performs the AJAX validation.
     * @param CModel the model to be validated
     */
    protected function performAjaxValidation($model) {
        if (isset($_POST['ajax']) && $_POST['ajax'] === 'item-form') {
            echo CActiveForm::validate($model);
            Yii::app()->end();
        }
    }

}
